| 12217564 |
Banknote validation device and processing inspection apparatus |
— |
2025-02-04 |
| 6922284 |
Method for automatically controlling the length of projection screen and multi-purpose apparatus thereof |
— |
2005-07-26 |
| 6891979 |
Pocket scanners |
Darwin Hu, Jung-Chih Huang, Paul Tin Choy Cheung, Hongwei Sun, Yingfeng Lv |
2005-05-10 |
| 6836361 |
Method and apparatus to increase visual contrast for video projection screen |
— |
2004-12-28 |
| 6704124 |
Mobile scanners |
Darwin Hu, Dongtai Liu, Chengrong Lu |
2004-03-09 |
| 6646682 |
Linear tri-color image sensors |
— |
2003-11-11 |
| 6603108 |
Image sensing modules for portable optical scanners |
Chengwu Gu |
2003-08-05 |
| 6596979 |
Method and apparatus for scanning colors using multiple arrays of photodetectors |
— |
2003-07-22 |
| 6587145 |
Image sensors generating digital signals from light integration processes |
— |
2003-07-01 |
| 6546152 |
Method and apparatus for providing images in portable 2-D scanners |
— |
2003-04-08 |
| 6459506 |
Lightweight dual-mode mobile scanner powered from a universal serial bus port |
Darwin Hu |
2002-10-01 |
| 6275309 |
Lightweight mobile scanners |
Darwin Hu, Dongtai Liu, Chengrong Lu |
2001-08-14 |
| 6271939 |
Transparent and flatbed scanner |
Darwin Hu |
2001-08-07 |
| 6249618 |
Circuit architecture and method for switching sensor resolution |
— |
2001-06-19 |
| 6104510 |
Hybrid illumination system for accelerating light integration in image sensing systems |
Darwin Hu |
2000-08-15 |
| 6054707 |
Portable scanners capable of scanning both opaque and transparent materials |
— |
2000-04-25 |
| 6031639 |
Apparatus for scanning both opaque transparent originals |
Darwin Hu, Lawrence Huang |
2000-02-29 |